1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2013 Tom Gundersen <teg@jklm.no>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <sys/ioctl.h>
#include <net/if.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
#include "ethtool-util.h"
#include "strxcpyx.h"
#include "util.h"
#include "log.h"
#include "conf-parser.h"
static const char* const duplex_table[_DUP_MAX] = {
[DUP_FULL] = "full",
[DUP_HALF] = "half"
};
DEFINE_STRING_TABLE_LOOKUP(duplex, Duplex);
DEFINE_CONFIG_PARSE_ENUM(config_parse_duplex, duplex, Duplex, "Failed to parse duplex setting");
static const char* const wol_table[_WOL_MAX] = {
[WOL_PHY] = "phy",
[WOL_MAGIC] = "magic",
[WOL_OFF] = "off"
};
DEFINE_STRING_TABLE_LOOKUP(wol, WakeOnLan);
DEFINE_CONFIG_PARSE_ENUM(config_parse_wol, wol, WakeOnLan, "Failed to parse WakeOnLan setting");
int ethtool_connect(int *ret) {
int fd;
assert_return(ret, -EINVAL);
fd = socket(PF_INET, SOCK_DGRAM, 0);
if (fd < 0) {
return -errno;
}
*ret = fd;
return 0;
}
int ethtool_get_driver(int *fd, const char *ifname, char **ret) {
struct ethtool_drvinfo ecmd = {
.cmd = ETHTOOL_GDRVINFO
};
struct ifreq ifr = {
.ifr_data = (void*) &ecmd
};
char *d;
int r;
if (*fd < 0) {
r = ethtool_connect(fd);
if (r < 0)
return log_warning_errno(r, "link_config: could not connect to ethtool: %m");
}
strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
r = ioctl(*fd, SIOCETHTOOL, &ifr);
if (r < 0)
return -errno;
d = strdup(ecmd.driver);
if (!d)
return -ENOMEM;
*ret = d;
return 0;
}
int ethtool_set_speed(int *fd, const char *ifname, unsigned int speed, Duplex duplex)
{
struct ethtool_cmd ecmd = {
.cmd = ETHTOOL_GSET
};
struct ifreq ifr = {
.ifr_data = (void*) &ecmd
};
bool need_update = false;
int r;
if (speed == 0 && duplex == _DUP_INVALID)
return 0;
if (*fd < 0) {
r = ethtool_connect(fd);
if (r < 0)
return log_warning_errno(r, "link_config: could not connect to ethtool: %m");
}
strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
r = ioctl(*fd, SIOCETHTOOL, &ifr);
if (r < 0)
return -errno;
if (ethtool_cmd_speed(&ecmd) != speed) {
ethtool_cmd_speed_set(&ecmd, speed);
need_update = true;
}
switch (duplex) {
case DUP_HALF:
if (ecmd.duplex != DUPLEX_HALF) {
ecmd.duplex = DUPLEX_HALF;
need_update = true;
}
break;
case DUP_FULL:
if (ecmd.duplex != DUPLEX_FULL) {
ecmd.duplex = DUPLEX_FULL;
need_update = true;
}
break;
default:
break;
}
if (need_update) {
ecmd.cmd = ETHTOOL_SSET;
r = ioctl(*fd, SIOCETHTOOL, &ifr);
if (r < 0)
return -errno;
}
return 0;
}
int ethtool_set_wol(int *fd, const char *ifname, WakeOnLan wol) {
struct ethtool_wolinfo ecmd = {
.cmd = ETHTOOL_GWOL
};
struct ifreq ifr = {
.ifr_data = (void*) &ecmd
};
bool need_update = false;
int r;
if (wol == _WOL_INVALID)
return 0;
if (*fd < 0) {
r = ethtool_connect(fd);
if (r < 0)
return log_warning_errno(r, "link_config: could not connect to ethtool: %m");
}
strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
r = ioctl(*fd, SIOCETHTOOL, &ifr);
if (r < 0)
return -errno;
switch (wol) {
case WOL_PHY:
if (ecmd.wolopts != WAKE_PHY) {
ecmd.wolopts = WAKE_PHY;
need_update = true;
}
break;
case WOL_MAGIC:
if (ecmd.wolopts != WAKE_MAGIC) {
ecmd.wolopts = WAKE_MAGIC;
need_update = true;
}
break;
case WOL_OFF:
if (ecmd.wolopts != 0) {
ecmd.wolopts = 0;
need_update = true;
}
break;
default:
break;
}
if (need_update) {
ecmd.cmd = ETHTOOL_SWOL;
r = ioctl(*fd, SIOCETHTOOL, &ifr);
if (r < 0)
return -errno;
}
return 0;
}
|
